ntn bearing screw installation, inspection and lubrication
Imported bearings 3 installation steps:
1, to the shaft to install ntn bearings, they must first unplug the jacket bearing a fixed pin, while the surface of polished smooth clean journal, and the journal office coated anti-rust and lubricating oil (allowing a slight bearing on the shaft rotation) .
2, in the bearing seat and bearing with the top coat of lubricating oil, the bearing load bearing inside. And then assembled with the bearing and ntn bearing sleeve to the shaft. Pushed to the desired location at the installation.
3, fixed bearing seat will not tighten the bolts first, let the bearings inside the jacket in the bearing can rotate. Similarly, bottles and the other end with a shaft bearings and seats, the axis rotation laps, so that auto-aligning bearing its own location. Then bearing bolts fastening good.
Acceptance of the steps carried out special inspections - on the import of bearings ntn vibration quality, noise quality, and other special requirements for bearing inspection; routine check-ntn bearing imports arrive when the routine general check-ups.
Ntn bearings by lubricant can achieve the role of rust and dust. Passed away ntn bearing lubrication of internal friction or other reasons due to the heat generated; to ntn bearing rolling contact surfaces often form an appropriate film to extend the ntn bearing fatigue life; first lubricated bearings ntn imported parts, reducing the ntn bearing friction and wear.
Spiral imported bearings main advantage of the outer ring can be reused several times, making it as soon as the effects due to the temperature arising from damage and bending to its re-processing is possible. In this case, bearing also need to be adjusted. Structural design of such structures, rather than only the spiral outer bearings need to be set to change all of the other bearing components can be used again. Bearing is adjusted by 1 mm in diameter sizes to increase the magnitude carried out in a way.
For example: When the diameter increased from 105mm to 106mm, the spiral also need to increase the outer diameter lmm to install it. This situation can be repeated until when the diameter 110mm. This can be repeated processing of bearing outer ring 5 times. This cost savings can be substantial, especially in all the other bearing components can be reused six times circumstances.
Spring steel has good flexibility, so it is easy to install, inner ring through the help of two hook-shaped wrench installed in any location, inside the inner tension can be fastened to the shaft. Elastic materials processing tolerances h9 or h1l of the inner ring is relatively easy to achieve. That used in the inner ring on the high processing costs would be eliminating the need for.
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